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PostPosted: Fri Apr 15, 2022 3:38 pm 
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Turbo EFI
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2368
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
Just sitting here visiting my wife in the hospital, and my mind is wandering. Just got "pinged" from my email, my new torque converter is sitting on my porch. I just remembered I have some of what I'd need to possibly put a propane conversion on my truck.
I need to find out a source for tanks and figure out mounting.
I Don't want to waste bed space for them, would like to put them underneath but still have a regular gas tank even if it meant I had to run a smaller regular gas tank than stock to do so. I bought the propane carburetor and lines back when I had my 85 d 250
As I thought about using it there 1st. That was a 318.
How would I go about finding a tank/tanks? Do they need recertification every so often like my torch tanks do?

Also some of you may remember how I built the engine for this truck, I wonder how well this /6 would work, as built? I do know that you can run higher compression on propane vs regular gas does that mean that at with all else being the same between 2 engines besides fuel choice, if on propane that engine would allow itself to run more timing advance on propane?
Don't know if I'll ever get to try this, somehow sitting here where I'm at my mind just wandered there, sounded like a good thing to wonder about at the moment.


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PostPosted: Sat Apr 16, 2022 5:00 pm 
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Joined: Thu Oct 31, 2002 5:39 pm
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Propane and natural gas aren't the same deal. Sounds like you're asking about propane, yes?

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PostPosted: Sat Apr 16, 2022 6:43 pm 
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Turbo EFI
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Joined: Wed Oct 12, 2005 9:00 pm
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Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
yeah. propane.


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PostPosted: Sat Apr 16, 2022 8:32 pm 
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Joined: Thu Oct 17, 2002 7:27 pm
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Location: Park Forest, Illinoisy
Car Model: 68 Valiant
The big thing about propane systems was LP was cheaper than gas. Not sure if it's still that way or not. LP can be made to run cleaner than a gas carb, but fuel injection probably negated that.

LP will give considerably less mileage than gas.

When I worked at the Marathon in Onarga in the early 80s we had a couple customers who ran LP. One was a 2wd Suburban that had a long tank mounted under the driver's side. It was outside the frame and had maybe 4" of ground clearance. It was a pita to get the lift set under it. I never understood how he never ruptured it hitting a pothole or road debris.

Not sure how easy it is anymore to find a filling station. Love's maybe?

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PostPosted: Sun Apr 17, 2022 7:01 pm 
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Supercharged

Joined: Wed Sep 17, 2008 6:48 pm
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Location: Indianapolis
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I may have mentioned this before, the last engine launch project that I was a player in prior to retirement was a Propane Engine Program. The engine was an 8.8L motor that used a propertiary propane FI system that is similar to a gas-diesel common rail FI system in that there were injectors that accepted liquid propane and fed that fuel directly into the combustion chamber, unlike the common practice of vaporizing liquid propane in a device similar to a carburetor.
The propane powered engine was targeted at school bus operations and was very successful. School busses have a very predictable route milage wise, so it was easy to match the fuel capacity to the route requirements. School districts buying propane powered busses get local and federal grants-discounts for using very low emission vehicles. The propane engines offered durability similar to a diesel engine with reduced maintenance.

The company that did the development is PSI. I liked working with them. They were lead by a couple of head strong entrepreneurs that hired a lot of local talent, bright engineers, and did the block and head CNC machining and engine assembly in Wooddale IL, West of Chicago.

https://imt-technologie.de/file/2016/03 ... STRIAL.pdf

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PostPosted: Mon Apr 18, 2022 3:30 am 
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Joined: Sat Oct 19, 2002 12:06 pm
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Location: Silver Springs, Fl.
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Many years (about 40) ago, I had planned on doing a turbo slant on propane. At that time propane was about half the price per gallon as gasoline. Never got around to doing it. Still have the Rajay turbo and Impco propane system on the shelf. Don't have the fuel tank.

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PostPosted: Mon Apr 18, 2022 10:37 am 
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Turbo EFI
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Joined: Wed Oct 12, 2005 9:00 pm
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Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
Yeah the tank I think would be the biggest hurdle besides having places I could fill it/them, I don't know where I'd even get such a tank. I don't know if I could get a used one form a yard or where I'd get a suitable one new. I know I couldn't just take the ones off my pop up, and run with those.


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PostPosted: Mon Apr 18, 2022 12:57 pm 
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On a drag race car, or one for only local driving, I had planned on using the kind/size that are mounted on the back of a fork truck.

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65 Valiant 100 2dr post 170 turbo
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PostPosted: Mon Apr 18, 2022 2:35 pm 
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Turbo EFI
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2368
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
I'd be looking mostly local, hopefully be able to go to work and back at least a few days without running out.
I know that Dodge vans had a propane option after the magnum engine came out, never seen one in person but always have the engine VIN ID digit come up when looking for parts
Have no idea what they would have used for propane storage


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